如何获得与 PostGIS 中给定圆相交的所有圆？

Question

我试图找出数据库中存储的所有与给定圆相交或重叠的圆（这些圆存在于世界各地）。我已经像这样存储了圆圈：

CREATE TABLE circles(gid serial PRIMARY KEY, name varchar, code integer, the_geog geography(POLYGON,4326) );

INSERT INTO circles (gid, name, code, the_geog) VALUES (1,"hello", 11,geometry(ST_Buffer(geography(ST_GeomFromText('POINT(48.732084 -3.459144)')), 1000)));

现在，当我试图找出与给定圆相交的所有圆时，出现此错误：

ERROR:  Only lon/lat coordinate systems are supported in geography.

我正在使用此查询来获取数据：

select * from circles where st_intersects (circles.the_geog,ST_Buffer(ST_Transform(ST_GeomFromText('POINT(-105.04428 39.74779)', 4326), 2877), 1500));

谁能告诉我我做错了什么？

Answer 1

我通过以下方式实现了这个功能：

select * from circles where st_intersects (circles.the_geog,geometry(ST_Buffer(geography(ST_GeomFromText('POINT(13.28527 52.521711)')), 1000)));

如何获得与 PostGIS 中给定圆相交的所有圆？

How to get all circles that intersect a given circle in PostGIS?

python

postgresql

geometry

postgis

intersection